how to get the column names and the values of them in select statement.

I have a package like this named ADB.pm

package ADB;

use DBI;

@ISA = ('Exporter');
@EXPORT_OK = ("Connection_check", "new","select_db");

sub new
{
    my $class = shift;
    my $self = {
        _pf => shift,
        _db => shift,
        _host => shift,
        _port => shift,
        _user => shift,
        _pass => shift
    };
    $dbh = Connection_check($self);
    #$self->{_dbh} = $dbh;
    bless $self, $class;
    return $self;
}

sub Connection_check {
    my($self ) = @_;
    $dsn = "DBI:$self->{_pf}:$self->{_db};$self->{_host};$self->{_port
+}";
    #$dsn = "DBI:mysql:database=$self->{_db};host=$self->{_host};port=
+$self->{_port}";
    $dbhc = DBI->connect($dsn,$self->{_user},$self->{_pass})or die "Un
+able to connect: $DBI::errstr\n";
    return ($dbhc)
}

### Retrieving the Rows ########

sub select_db{
  my ($obj,$sel) = @_;
  my $selnew = $dbh->prepare($sel);
  $selnew->execute or die "Unable to connect: $DBI::errstr\n";
  my @AoA;
  my @FinArr;
  while (@AoA = $selnew->fetchrow_array)
    {
      push @FinArr, [@AoA];
    }

  return @FinArr;
}
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and perl file adb.pl like this

#!/usr/bin/perl

use DBI;
use DBD::mysql;
use Utils::ADB;


$object = new ADB( "mysql","adb", "192.168.106.218", 3306, "root", "ro
+ot");

my @records = $object -> select_db ("select * from users");

foreach $recRef (@records) {
  print join ("   ", @$recRef),"\n";
}

print "\n \n";
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when execute adb.pl it displays the table results blidly.

I need to get the column names also with the respective values. Can u please tell me which modification i need to do in the code

results what i am getting are like this

1 admin admin 1 3 3
2 demouser 111111 1 1 1

i want the column names to be print for them.